Respironics BiPAP - Page 50

Chapter 5
5-18 BiPAP Focus Ventilator Service Manual © Respironics, Inc. REF 1029568 Rev B
Diagnostic Mode and Troubleshooting
9 IRQ STACK UNDERFLOW Controller processor detected a stack underflow.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
10 TIMER STACK OVERFLOW Controller processor detected a stack overflow.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
11 TIMER STACK UNDERFLOW Controller processor detected a stack underflow.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
12 SERVICE STACK OVERFLOW Controller processor detected a stack overflow.
1. Retrieve the DRPT and contact technical support.
13 SERVICE STACK UNDERFLOW Controller processor detected a stack underflow.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
14 THREAD STACK OVERFLOW Controller processor detected a stack overflow.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
15 UNDEFINED INSTRUCTION Controller processor detected an unexpected exception.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
16 UNEXPECTED SOFTWARE
INTERRUPT
Controller processor detected an unexpected exception.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
17 MICROPROCESSOR
PREFETCH EXCEPTION
Controller processor detected an unexpected exception.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
18 DATA ACCESS EXCEPTION Controller processor detected an unexpected exception.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
19 RESERVED EXCEPTION Controller processor detected an unexpected exception.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
20 SPURIOUS DEFAULT
INTERRUPT
Controller processor detected an unexpected interrupt.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
21 SPURIOUS INTERRUPT Controller processor detected an unexpected interrupt.
1. If the problem persists replace the controller PCB.
2. Retrieve the DRPT and contact technical support.
Table 5-3: Significant Event Codes (Continued)
Event ID Comment / Corrective Action